Locking-latch.



A. R. ENQUIST. LOCKING-LATCH.

FILED 0Ec.20. 19-i6.

APPLICATION Patented Oct. 2, 1917.

- INVENTOR oi 'zzwfi (2;

' WITNESSES:

ATTORNEYS lbildiM WiiW i/ 0 mm. i it-knewn ha I, Arum; 1?. Emma ma tras;Un dfi t are in a eal bounty of New H v ,fzta aef ii lep icet havei tean lm rew m a 1n"Locl;i 1'r 1g -L atches,j of which the following heefiea io -j l. H f l te ta esl i 99k: tr g, latches adapted for I generalujs'e gangl .0 es ec ly ad p d I v u ei ,refirisemter s? doorsi a nd thelilge, which is described (and l i d n Le ters, P t n .t Harry, A

P r iis xt ws efe r tien m e of partsfis.reduced'to the minimum, and theas e t v ti ni has far. i s e iect. a. re.- isa ti na drea ran ement 9hwart Qf elat' hi ..o e t inz xide stru tu e e m yb -asse bl d mqre'eeslylthat wil wei' dm a la. t a will aY0id.;1. Qt iand hu i iea n es he.supp r. c the ecm ed;-sp ng ands oltnd w ich il 09k Elev rotation 50 tik y t wa d e lef iea'd' of tow rd th lright wh ch as desa y th rade Thccomp hby ii 19; t i h su a al y -shaped ome b ined. spring and bolt arelatively wide bend,

1 Thi; i inventio v-the upper, arm ,of said member above the:keyahubinstead nf-belowitwyith the neces-v sary-changes in the details;of construction. In the accompanying drawing forming a perspective view7 as in use;

i Fig. 2 arear perspectiveview with the cover-plate removed, thecombined spring 'andbolt' being in the locking position;

Fig.1'3a similar view with the combined of my novel lockinglatchposition, leaving the ,latch" operative;

i. Fig. 4a perspectiveview of the comblned spring and bolt detached, and

1 t lication 'filed hecenib'er 20, 1 91 6. Seri'al No'.

vh iei es fr spri ge'a ti aandP acing of this specification Figure 1 isa front .1,

tspring .and. bolt inits normal or retracted p [key-hub which 1s adaptedto oscillate in .E Fig. 5 an elevation of the latch detached;

plate.

3 ffiiooifiive-ilhren.

the'l atch projects. latch is operated by nieans of lever 18:pivotecloutsicle Ithe case andhaving an operatingarm 19 which projectsthrough a slot 20 in thecase and wa -se a -P e off el elw denotes theslidable combined spring and bolt which is substantially U;shaped rsnxsraa u s PATENT JOFFIOJE. I see.. l..a.maa Mala sia.swa ches. ssameeassist. i

'i ebmsaaweraeem at; 'coimii TIcUT, le "CO'iRPdRATIQN "orYIGONNEC'IZLCUTQ t d c pr s s e uP'P min 22 a d alowe ar n 23 saidspring and bolt being prefer a-bly formedfoit flat resilientgmaterial,The upper arm is proyided with a lockingiprojection A 2%, formed thepresent instance by making a v shaped the arm, and

with adrevregzeiving socket 25 formed by makiii g lanotherdflshapeflbend arm. The lower arm is suitablyshaped .to bear upon the top. of thelatch at asuitablediss n aa maep' v jel j-te t -beins=fbrmel with aportion. extending fsubstanti a lly at kiwi .i i i .I. t. r ght 'anglestothe ar nf22, for asubstant al d stance, and thencxtended n a contnuous curvelpto the latch. 'lhe combined spring and bolt is retained inplace bv studs 26, p

. 7 c 2f8t th f rm r. y n in. h b dw the spring and below the upper.arm, and the others lying above said arm. The combined pans. a d bolt i'iv el s y .r teii e. l.

againstmovement in either direction when n t i tl ek d P cs, b thsasment of (the projections onbends of the upper arm with lugs 27 and28, as clearly shown in 11 w ll-when,- in the 1ocke,d position-.;it

is yieldingly retained against backward movement by engagement of thelocking pro- "jection with stud 28, as clearly shown in Fig. 2. Justwithin arm l6 of the latch and abovethe body of the latch, is a stud 29which is received in a recess 30 in the-latch when the latter is raised.

31- denotes a key-hole in the case and 32 a Y in the combined spring andbolt to move said member into and out of the locking position. The keyhub 32 is staggered with respect to the studs 27 and28, and said hub.

extends from the front wall of the case in such position as to cooperatewith thestuds to guide the upper arm 22 in its sliding movements. Thestuds 27 and. 28 project latch in place.

latch isshown as beveled to engage a keeper not shown) and be raised 1in the usual manner against the power of the 'spring,- or the latchmaybe raised against the power from one of the marginal walls of thelock chamber, above said hub The operation is as follows :VVhen thecombined spring and bolt .is in its retracted or-unlocking positionas inFig. 3, the lower arm simplyserves as a spring to retain the Theoperative end of the of thespring by operation of the lever. To look thelatch the key is inserted in the hub and the hub rotated thereby towardthe left asseen in Fig. 1, or toward the right as seen in Fig. 8. A bitof the key will engage the key-receiving socket in the combi'ned springandbolt andwill force said niembe'rtoward theleft, or toward the rightasseen' in Fig. 3 .(which is a reverse view), the locking projectionpassing under stud 28 and then rising through the resiliency of the armonflthe opposite side of the lug, as in Fig. 3, and retaining the memberin that position. until' it is retracted by operation of the key. Thelocking is effected by passing the end of the lower arm of the combinedspring and bolt under lug 29, as clearly shown in Fig. 2. said armcovering recessBO in' 'the latch and lying between the latch and thestud, thus making it impossible to raise the. latch. Unlocking of thelatch is effected by .a reverse movement of the key-hub by means of thekev which can onl be removed when the hub is either in the looking orthe unlocking-position. In unlocking, the hub is rotated toward the i Iright as seen in Fig, 1 or toward the left J to be operated by thel everor by slamming as seen in Fig. 2, a bit of the key engaging thekey-receiving socket in the combined spring and bolt. This leaves thelatch free Copies of this patent may be obtained for the door to. whichthe case is attached to the closed position.

bearing against said latch, said straight arm having a lockingprojection cooperating with one of said studs and also having a bendforming a key-engaging recess.

2. A. look of the character described cornprising a case provided with achamber,

studs projecting from onemarginal wall of said chamber, a key, hubprojecting from the front wall of the chamber and staggered with respectto said studs,'a latch, and a resilient locking member formed of flatresilient material, having a straight arm slidably mounted between andguided by member also having an arm provided with said studs and saidkey hub, said locking a [portion at right angles with the straightportion and integral therewith, said angularly-disposed portionextending from the. straight arm a substantial distance and terminatingin a continuously curved arm'- bearing against said latch, said straightarm having bends forming a locking pro ection and a key-engaging recess,respectively, pro ection cooperating with;

said locking one of the said studs. L In testimony whereof I afiix mysignature.

'An'rH R R. ENo'UIs I five cents each, by addressing the Commissioner ofPatents, I Washington, D. C. v

